Fab Four made North American debut on Ed Sullivan Show 50 years ago

Fifty years ago, the Beatles made their first trip to North America and were greeted in New York by packs of screaming girls and throngs of bemused journalists. The Fab Four's 1964 arrival in America marked a cultural turning point that also propelled the band to achieving full-fledged global Beatlemania.

During their two-week stay in the U.S., John, Paul, George and Ringo won over new fans, who flocked to their performances. Observers were puzzled by the mop-topped lads from Liverpool and the teen hysteria they inspired. Test your knowledge of their watershed debut.